EP3301313B1 - Adhesive anchor - Google Patents

Adhesive anchor Download PDF

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Publication number
EP3301313B1
EP3301313B1 EP17192913.6A EP17192913A EP3301313B1 EP 3301313 B1 EP3301313 B1 EP 3301313B1 EP 17192913 A EP17192913 A EP 17192913A EP 3301313 B1 EP3301313 B1 EP 3301313B1
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EP
European Patent Office
Prior art keywords
adhesive
main body
adhesive anchor
bore
anchor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17192913.6A
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German (de)
French (fr)
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EP3301313A1 (en
Inventor
Yvo ZENHÄUSERN
Thomas Doppelbauer
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Efco Befestigungstechnik AG
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Efco Befestigungstechnik AG
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Publication of EP3301313A1 publication Critical patent/EP3301313A1/en
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Publication of EP3301313B1 publication Critical patent/EP3301313B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/02—Setting anchoring-bolts with provisions for grouting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F16B2013/148—Means for inhibiting adhesion between dowel or anchor bolt parts and the surrounding grouting composition

Definitions

  • the invention provides an adhesive anchor with the features of the preamble of claim 1 and a method for anchoring a component in a bore with the features of claim 9.
  • Adhesive anchors of the generic type are used to anchor components (e.g. in the form of threaded rods or sleeves) in bores.
  • the adhesive anchors have a connecting means for connecting the component to the adhesive anchor.
  • a generic method is carried out in such a way that a sufficient amount of liquid or pasty adhesive (e.g. a two-component adhesive or mortar) is poured into the hole and then the adhesive anchor is inserted into the hole and thus pressed into the adhesive . After the adhesive has solidified, the component can be anchored in the bore using the connecting means.
  • a further disadvantage is that the introduction of adhesive into the bore is not reproducible and therefore more or less random, since the adhesive is first introduced with an injector in the area of the bottom of the bore and then the injector with continued application of adhesive out of the bore is pulled. This can lead to the formation of cavities in the adhesive (e.g. if the adhesive is pulled out too quickly or due to the adhesion of adhesive to the injector), which has a negative impact on the strength of the connection between adhesive anchor, adhesive and borehole wall.
  • DE 298 20 560 U1 shows an adhesive anchor with a base body designed as a sleeve and a connecting means in the form of an internal thread.
  • An introduction opening is arranged on the base body, via which an adhesive can be introduced with the aid of an injector introduced into the introduction opening.
  • the base body has an outlet opening which communicates with the introduction opening and which allows the adhesive mass introduced into or via the introduction opening to exit the base body into a bore surrounding the adhesive anchor.
  • An adhesive anchor with the features of the preamble of claim 1 is based DE 25 56 493 A1 emerged.
  • the object of the invention is to provide a generic adhesive anchor and a generic method in which the problems discussed above are avoided.
  • the adhesive anchor has at least one second channel for adhesive on or in the base body, which, starting from the predetermined axial position of the base body, extends to an end opposite the head of the adhesive anchor and via which adhesive composition starting from the predetermined axial position can be deployed as far as the end opposite the head of the adhesive anchor, it being preferably provided that the at least one second channel connects to at least one first channel.
  • This predetermined axial position is advantageously arranged adjacent to the head of the adhesive anchor in order to avoid an unnecessarily long construction of the base body.
  • an insertion of an adhesive anchor according to the invention in one direction of insertion into the bore (which at this point is preferably still free of adhesive; in any case, there should at best be so little adhesive in the bore that the adhesive anchor is inserted into the Hole is not pressed into the adhesive) and then an introduction of adhesive into the gap remaining between the hole and the base body takes place.
  • the at least one second channel is or are designed, at least in sections, as a groove running on a lateral surface of the base body.
  • the at least one second channel run at least in sections helically in the axial direction along the base body, preferably providing that the slope of the channel or channels changes in the axial direction of the base body.
  • the at least one second channel as an at least partially helical groove running on a lateral surface of the base body, an adhesive mortar flow is guided in a defined manner around the base body along this helical groove. This ensures that the adhesive anchor is evenly bonded to a wall of the bore along its entire circumferential surface and loads are thus evenly transferred to the wall of the bore. This results in a more stable anchoring of the adhesive anchor in the hole.
  • At least one introduction opening is arranged on or in the base body, via which an adhesive can be introduced with the aid of an injector introduced into the introduction opening and that the base body has at least one outlet opening which communicates with the at least one introduction opening and which exits into the or adhesive mass introduced via the introduction opening from the base body into a bore surrounding the adhesive anchor.
  • the adhesive anchor has at least one seal arranged on the base body which, when an adhesive anchor is inserted in a bore, axially closes at least the gap remaining between the base body and a wall of the bore and thus at least essentially prevents the passage of adhesive.
  • a certain sealing gap can definitely remain between the seal and the wall of the bore, provided this is small enough to form a sufficiently high resistance to a flow through, so that the adhesive mass introduced into the gap space is deflected away from the seal in the intended direction .
  • the required amount of adhesive is also known, which is why the method can be carried out in a reproducible manner.
  • the total amount of adhesive required can be calculated fairly precisely in advance. The losses that occur are much lower than in the prior art. A - non-reproducible - turning of the adhesive anchor is not necessary.
  • the seal can be designed in the form of a projection running radially around the base body.
  • the seal could e.g. B. also be designed as a part that can be screwed onto a head of the adhesive anchor.
  • the seal can be made at least so elastic or resilient that it can be adapted to bores with different diameters.
  • the adhesive anchor has a press fit for the axial positioning of the adhesive anchor in the bore, it being preferably provided that the seal functions as a press fit.
  • the press fit can also center the adhesive anchor in the hole.
  • the press fit can either be so strong that the adhesive anchor is prevented from slipping into the bore before the adhesive mass solidifies, or it can be so strong that the adhesive anchor is prevented from being displaced by the injection forces generated when the adhesive is introduced.
  • the adhesive can be liquid or pasty.
  • it can be a two-part adhesive or mortar.
  • the Klebanker can e.g. B. made of plastic or metal or combinations thereof.
  • Fig. 1a shows an exemplary embodiment of an adhesive anchor 1 according to the invention with an essentially cylindrical base body 2 extending axially in the direction of the longitudinal axis in a cross section through a central plane having the longitudinal axis of base body 2.
  • the adhesive anchor 1 is inserted into a bore 6 of a subsurface (designed here as a concrete surface).
  • the direction of insertion corresponds to the direction of extension of the bore 6.
  • the adhesive anchor 1 is inserted into the bore 6 before the adhesive 4 is introduced into the bore 6.
  • the base body 2 of the adhesive anchor 1 is designed as a sleeve and is provided with an internal thread 13 (this represents the connecting means for connecting a component to the adhesive anchor 1).
  • the base body 2 extends between a head 9 of the adhesive anchor 1 and an end of the adhesive anchor 1 opposite the head 9.
  • the first channel 8 corresponds to the core hole of the internal thread 13.
  • the adhesive anchor 1 has a seal 7, designed here as a radially circumferential projection and arranged in the area of the head 9, which axially closes the gap remaining between the base body 2 and the wall of the bore 6 in the insertion direction and thus the passage of adhesive 4 around the head 9 around at least substantially prevented.
  • the base body 2 there is a centrally arranged introduction opening 3 for adhesive, into which the adhesive 4 can be introduced with the aid of an injector 10 introduced into the introduction opening 3 (cf. Figure 1c ).
  • the base body 2 here has two outlet openings 5 communicating with the introduction opening 3 via a connecting channel 11 and channel 17 running transversely to the axial extent (cf. Figure 1b ), which allow the escape of adhesive 4 from the base body 2 into the bore 6 surrounding the adhesive anchor 1.
  • the seal 7 results in a flow path with low resistance only in one direction for the adhesive 4 exiting via the outlet openings 5, namely in the direction pointing away from the head 9 of the adhesive anchor 1 (i.e. opposite to the direction of insertion), the leaked adhesive 4 flows from the head 9 away (cf. Figure 1c ) and finally reaches the opening of the bore 6.
  • the introduction of adhesive 4 can then be stopped.
  • a defined amount of adhesive 4 is in the bore 6 has been introduced and one has the certainty that the gap remaining between the bore 6 and the base body 2, which is axially delimited in the insertion direction by the seal 7 and is completely filled with adhesive 4.
  • Fig. 1d Figure 3 shows an isometric view of the discussed embodiment.
  • outlet openings 5 are connected to a second channel 12 which runs helically along the outer surface of the base body 2 and is in the form of a groove.
  • the seal 7 could, for. B. can also be designed as a part that can be screwed onto the head 9 of the adhesive anchor 1 (cf. Fig. 1e and 6c ).
  • two second channels 12 are provided on opposite sides of the base body 2, each of which is connected to one of the two outlet openings 5 and meanders axially along the lateral surface of the base body 2.
  • the seal 7 could here as in FIGS Figures 1a-1d be formed shown.
  • Fig. 2a shows an exemplary embodiment of an adhesive anchor 1 not according to the invention in a cross section through a central plane having the longitudinal axis of the essentially cylindrical base body 2.
  • the adhesive anchor 1 has a base body 2 which is provided with an internal thread 13 (this represents the connecting means for connecting a component to the adhesive anchor 1) and is designed as a sleeve, which is located between a head 9 of the adhesive anchor 1 and a head 9 opposite end of the adhesive anchor 1 extends.
  • adhesive 4 can be introduced into a first channel 8 by means of an injector 10 on the side of the adhesive anchor 1 in the area of the opening of the bore 6 and flows along the first channel 8 in the direction of insertion to the head 9 of the adhesive anchor 1.
  • first channel 8 opens into a second channel 12 via a channel segment 14 running transversely to the axial direction of the base body 2, through which the adhesive 4 can flow from the head 9 of the adhesive anchor 1 counter to the direction of insertion back to the opening of the bore 6.
  • the first channel 8 is designed here in the form of a groove that runs straight between two axially extending projections.
  • the second channel 12 is arranged on the opposite side of the base body 2 and is designed to meander.
  • first and second channels 8, 12 in the form of a two-thread or multiple-thread helix, with the first and second channels 8, 12 not intersecting (cf. Figures 3a-3d ).
  • the Figures 3b and 3d show isometric views of the opposite sides of the base body 2. It can then preferably be provided that the slope of the channel 8, 12 or the channels 8, 12 changes in the axial direction of the base body 2. Such a variable slope has the advantage that it is not possible to unscrew the adhesive core 1 after the adhesive 4 has solidified.
  • FIG. 4 has a rod-shaped base body 2, the connecting means being designed as an external thread 15.
  • the view of the Figure 4a shows the adhesive anchor 1 according to the invention in a cross section through a central plane having the longitudinal axis of the essentially cylindrical base body 2 (cf. line A - A in FIG Figure 4c ).
  • Adhesive 4 is in the area of the head 9 of the adhesive anchor 1 via a centrally arranged first channel 8 running in the base body 2 bringable. There the first channel 8 opens into an outlet opening 5. Via a cavity arranged in front of the head 9, leaked adhesive 4 can enter the second channel 12 running helically on the base body 2 and flow into the area of the opening of the bore 6.
  • a seal 7 is not provided here. Of course, the provision of a seal 7 would also be possible in this exemplary embodiment.
  • Fig. 5 shows a further embodiment of the invention with a sleeve-shaped base body 2 and a seal 7 in the form of a bag-like film.
  • this can prevent the adhesive 4 from simply running away through cavities.
  • the permeability of the film is preferably matched to the type of adhesive 4 that only as much adhesive penetrates through the film to the outside as is necessary for bonding to the borehole wall.
  • the film prevents the adhesive 4 from running in an uncontrolled manner in cavities, for example in the case of hollow bricks.
  • the geometric course of the film can have different permeabilities. So it is advantageous to design axially impermeable in the immediate area of the head 9.
  • wire mesh As an alternative to foils, wire mesh, plastic mesh or fabric made of suitable materials can be used
  • the film is attached to the head 9 of the adhesive anchor 1, e.g. B. glued.
  • the film could also fill only part of the bore 6.
  • FIGS 6a-6c show detailed representations of possible designs of the seal 7.
  • the seal 7 is inserted into a groove running around the head 9 of the adhesive anchor 1 and has the shape of a disk ( Figure 6a ) or a ring ( Figure 6b ) on.
  • the seal 7 is screwed to the head 9 of the adhesive anchor 1.
  • a setting depth marking known per se or a setting depth stop can be provided.

Description

Die Erfindung einen Klebeanker mit den Merkmalen des Oberbegriffs des Anspruchs 1 und ein Verfahren zum Verankern eines Bauteils in einer Bohrung mit den Merkmalen des Anspruchs 9.The invention provides an adhesive anchor with the features of the preamble of claim 1 and a method for anchoring a component in a bore with the features of claim 9.

Gattungsgemäße Klebeanker werden dazu verwendet, Bauteile (z. B. in Form von Gewindestangen oder Hülsen) in Bohrungen zu verankern. Zu diesem Zweck weisen die Klebeanker ein Verbindungsmittel zum Verbinden des Bauteils mit dem Klebeanker auf. Ein gattungsgemäßes Verfahren wird so durchgeführt, dass zunächst flüssige oder pastöse Klebemasse (z. B. ein Zwei-Komponenten-Klebstoff oder Mörtel) in ausreichender Menge in die Bohrung eingefüllt wird und anschließend der Klebeanker in die Bohrung eingeführt und damit in die Klebemasse eingepresst wird. Nach Verfestigen der Klebemasse kann das Bauteil über das Verbindungsmittel in der Bohrung verankert werden.Adhesive anchors of the generic type are used to anchor components (e.g. in the form of threaded rods or sleeves) in bores. For this purpose, the adhesive anchors have a connecting means for connecting the component to the adhesive anchor. A generic method is carried out in such a way that a sufficient amount of liquid or pasty adhesive (e.g. a two-component adhesive or mortar) is poured into the hole and then the adhesive anchor is inserted into the hole and thus pressed into the adhesive . After the adhesive has solidified, the component can be anchored in the bore using the connecting means.

Bei einem solchen Verfahren ist nicht sichergestellt, dass sich Klebemasse bei einer vorbestimmten axialen Position der Bohrung befindet. Z. B. kann es vorkommen, dass sich im Bereich eines Kopfes des Klebeankers keine oder zu wenig Klebemasse befindet, was - ohne dass dies bemerkt wird - zu einer unzureichenden Verankerung des Bauteils in der Bohrung führt. Ein Grund dafür kann sein, dass die Bohrung in Bezug auf den eingesetzten Klebeanker zu tief ist und es der Monteur verabsäumt, eine angepasste Menge an Klebemasse in die Bohrung einzubringen. Ein weiterer Grund kann sein, dass es der Monteur verabsäumt, den Klebeanker beim Eindrücken in die Klebemasse ausreichend zu drehen, um zu erreichen, dass die Klebemasse den Grundkörper ausreichend benetzt. Im Nachhinein ist nicht erkennbar, ob der Monteur den Klebeanker ausreichend verdreht hat, sodass weder Sicherheit über die ausreichende Festigkeit der Verbindung des Klebeankers mit der Öffnung noch eine Reproduzierbarkeit des Verfahrens gegeben ist.In such a method, it is not ensured that the adhesive is located at a predetermined axial position of the bore. For example, it can happen that there is no or too little adhesive in the area of a head of the adhesive anchor, which - without this being noticed - leads to insufficient anchoring of the component in the bore. One reason for this can be that the hole is too deep in relation to the adhesive anchor used and the fitter fails to introduce an appropriate amount of adhesive into the hole. Another reason can be that the fitter fails to turn the adhesive anchor sufficiently when it is pressed into the adhesive in order to ensure that the adhesive sufficiently wets the base body. In retrospect, it is not possible to determine whether the fitter has twisted the adhesive anchor sufficiently, so that there is no certainty about the sufficient strength of the connection between the adhesive anchor and the opening, nor whether the method can be reproduced.

Da der Monteur zur Sicherstellung einer ausreichenden Verklebung meist mehr Klebemasse als nötig in die Bohrung einbringt, wird beim Eindrücken des Klebeankers in die Klebemasse die überflüssige Menge an Klebemasse aus der Bohrung herausgedrückt und führt so zu Verunreinigungen im Bereich der die Bohrung umgebenden Oberfläche. Ein weiterer Nachteil besteht darin, dass die Einbringung von Klebemasse in die Bohrung nicht reproduzierbar und damit mehr oder weniger zufällig erfolgt, da die Klebemasse mit einem Injektor zunächst im Bereich des Bohrgrundes eingebracht wird und anschließend der Injektor unter fortgesetzter Ausbringung von Klebemasse aus der Bohrung heraus gezogen wird. Hierbei kann es (z. B. bei zu raschem Herausziehen oder durch das Anhaften von Klebemasse am Injektor) zur Bildung von Hohlräumen in der Klebemasse kommen, was die Festigkeit der Verbindung zwischen Klebeanker, Klebemasse und Bohrlochwand negativ beeinflusst.Since the fitter usually introduces more adhesive into the hole than is necessary to ensure adequate bonding, when the adhesive anchor is pressed into the adhesive, the excess amount of adhesive is pressed out of the hole and thus leads to contamination in the area of the surface surrounding the hole. A further disadvantage is that the introduction of adhesive into the bore is not reproducible and therefore more or less random, since the adhesive is first introduced with an injector in the area of the bottom of the bore and then the injector with continued application of adhesive out of the bore is pulled. This can lead to the formation of cavities in the adhesive (e.g. if the adhesive is pulled out too quickly or due to the adhesion of adhesive to the injector), which has a negative impact on the strength of the connection between adhesive anchor, adhesive and borehole wall.

DE 298 20 560 U1 zeigt einen Klebeanker mit einem als Hülse ausgebildeten Grundkörper und einem Verbindungsmittel in Form eines Innengewindes. Am Grundkörper ist eine Einbringöffnung angeordnet, über welche eine Klebemasse mit Hilfe eines in die Einbringöffnung eingeführten Injektors einbringbar ist. Der Grundkörper weist eine mit der Einbringöffnung kommunizierende Austrittsöffnung auf, welche den Austritt von in die oder über die Einbringöffnung eingebrachter Klebemasse aus dem Grundkörper in eine den Klebeanker umgebende Bohrung gestattet. DE 298 20 560 U1 shows an adhesive anchor with a base body designed as a sleeve and a connecting means in the form of an internal thread. An introduction opening is arranged on the base body, via which an adhesive can be introduced with the aid of an injector introduced into the introduction opening. The base body has an outlet opening which communicates with the introduction opening and which allows the adhesive mass introduced into or via the introduction opening to exit the base body into a bore surrounding the adhesive anchor.

Ein Klebeanker mit den Merkmalen des Oberbegriffs des Anspruchs 1 geht aus DE 25 56 493 A1 hervor.An adhesive anchor with the features of the preamble of claim 1 is based DE 25 56 493 A1 emerged.

Aufgabe der Erfindung ist die Bereitstellung eines gattungsgemäßen Klebeankers und eines gattungsgemäßen Verfahrens, bei welchen die oben diskutierten Probleme vermieden werden.The object of the invention is to provide a generic adhesive anchor and a generic method in which the problems discussed above are avoided.

Diese Aufgabe wird durch einen Klebeanker mit den Merkmalen des Anspruchs 1 und ein Verfahren mit den Merkmalen des Anspruchs 9 gelöst. Vorteilhafte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by an adhesive anchor with the features of claim 1 and a method with the features of claim 9. Advantageous embodiments of the invention are defined in the dependent claims.

Es ist also vorgesehen, dass der Klebeanker am oder im Grundkörper wenigstens einen zweiten Kanal für Klebemasse aufweist, welcher sich ausgehend von der vorbestimmten axialen Position des Grundkörpers bis zu einem dem Kopf des Klebeankers entgegengesetzten Ende erstreckt und über welchen Klebemasse ausgehend von der vorbestimmten axialen Position bis zu dem dem Kopf des Klebeankers entgegengesetzten Ende ausbringbar ist, wobei vorzugsweise vorgesehen ist, dass sich der wenigstens eine zweite Kanal an wenigstens einen ersten Kanal anschließt.It is therefore provided that the adhesive anchor has at least one second channel for adhesive on or in the base body, which, starting from the predetermined axial position of the base body, extends to an end opposite the head of the adhesive anchor and via which adhesive composition starting from the predetermined axial position can be deployed as far as the end opposite the head of the adhesive anchor, it being preferably provided that the at least one second channel connects to at least one first channel.

Dadurch ist einerseits sichergestellt, dass Klebemasse zu einer vorbestimmten axialen Position in der Bohrung gebracht wird. Diese vorbestimmte axiale Position wird vorteilhafterweise benachbart zum Kopf des Klebeankers angeordnet sein, um eine unnötig lange Ausbildung des Grundkörpers zu vermeiden. Andererseits wird sichergestellt, dass eine ausreichende Klebewirkung der Klebemasse an einer gewünschten Position der Bohrung vorliegt. Üblicherweise wird sich diese gewünschte Position möglichst tief in der Bohrung befinden, da sich dann eine optimale Verankerung ergibt.This ensures on the one hand that the adhesive is brought to a predetermined axial position in the bore. This predetermined axial position is advantageously arranged adjacent to the head of the adhesive anchor in order to avoid an unnecessarily long construction of the base body. On the other hand, it is ensured that there is a sufficient adhesive effect of the adhesive at a desired position of the bore. Usually, this desired position will be as deep as possible in the hole, as this results in optimal anchoring.

Bei einem erfindungsgemäßen Verfahren ist vorgesehen, dass zunächst ein Einsetzen eines erfindungsgemäßen Klebeankers in einer Einsetzrichtung in die Bohrung (welche zu diesem Zeitpunkt bevorzugt noch frei von Klebemasse ist, jedenfalls soll allenfalls so wenig Klebemasse in der Bohrung sein, dass der Klebeanker beim Einbringen in die Bohrung nicht in die Klebemasse eingedrückt wird) erfolgt und anschließend ein Einbringen von Klebemasse in den zwischen der Bohrung und dem Grundkörper verbleibenden Spaltraum erfolgt.In a method according to the invention it is provided that first an insertion of an adhesive anchor according to the invention in one direction of insertion into the bore (which at this point is preferably still free of adhesive; in any case, there should at best be so little adhesive in the bore that the adhesive anchor is inserted into the Hole is not pressed into the adhesive) and then an introduction of adhesive into the gap remaining between the hole and the base body takes place.

Bevorzugt ist vorgesehen, dass der wenigstens eine zweite Kanal zumindest abschnittsweise als an einer Mantelfläche des Grundkörpers verlaufende Nut ausgebildet ist bzw. sind.It is preferably provided that the at least one second channel is or are designed, at least in sections, as a groove running on a lateral surface of the base body.

Besonders bevorzugt ist vorgesehen, dass der wenigstens eine zweite Kanal zumindest abschnittsweise wendelförmig in axialer Richtung entlang des Grundkörpers verlaufen, wobei vorzugsweise vorgesehen ist, dass sich die Steigung des Kanals bzw. der Kanäle in axialer Richtung des Grundkörpers verändert.It is particularly preferred that the at least one second channel run at least in sections helically in the axial direction along the base body, preferably providing that the slope of the channel or channels changes in the axial direction of the base body.

Durch eine Ausbildung des wenigstens einen zweiten Kanals als zumindest abschnittsweise wendelförmige, an einer Mantelfläche des Grundkörpers verlaufende Nut, wird ein Klebemörtelfluss entlang dieser wendelförmigen Nut definiert rund um den Grundkörper geführt. Dadurch ist sichergestellt, dass der Klebeanker entlang seiner gesamten Mantelfläche gleichmäßig mit einer Wandung der Bohrung verklebt ist und Lasten somit gleichmäßig auf die Wandung der Bohrung übertragen werden. Dies hat eine stabilere Verankerung des Klebeankers in der Bohrung zur Folge.By designing the at least one second channel as an at least partially helical groove running on a lateral surface of the base body, an adhesive mortar flow is guided in a defined manner around the base body along this helical groove. This ensures that the adhesive anchor is evenly bonded to a wall of the bore along its entire circumferential surface and loads are thus evenly transferred to the wall of the bore. This results in a more stable anchoring of the adhesive anchor in the hole.

Es ist vorgesehen, dass am oder im Grundkörper wenigstens eine Einbringöffnung angeordnet ist, über welche eine Klebemasse mit Hilfe eines in die Einbringöffnung eingeführten Injektors einbringbar ist und dass der Grundkörper zumindest eine mit der wenigstens einen Einbringöffnung kommunizierende Austrittsöffnung aufweist, welche den Austritt von in die oder über die Einbringöffnung eingebrachter Klebemasse aus dem Grundkörper in eine den Klebeanker umgebende Bohrung gestattet.It is provided that at least one introduction opening is arranged on or in the base body, via which an adhesive can be introduced with the aid of an injector introduced into the introduction opening and that the base body has at least one outlet opening which communicates with the at least one introduction opening and which exits into the or adhesive mass introduced via the introduction opening from the base body into a bore surrounding the adhesive anchor.

Bevorzugt ist vorgesehen, dass der Klebeanker wenigstens eine am Grundkörper angeordnete Dichtung aufweist, welche bei einem in eine Bohrung eingesetzten Klebeanker zumindest den zwischen dem Grundkörper und einer Wandung der Bohrung verbleibenden Spaltraum axial verschließt und so den Durchtritt von Klebemasse zumindest im Wesentlichen verhindert. Zu beachten ist, dass durchaus ein gewisser Dichtspalt zwischen der Dichtung und der Wandung der Bohrung verbleiben kann, vorausgesetzt dieser ist gering genug um einen hinreichend großen Widerstand gegen ein Durchströmen zu bilden, sodass in den Spaltraum eingebrachte Klebemasse von der Dichtung weg in die vorgesehene Richtung umgelenkt wird.It is preferably provided that the adhesive anchor has at least one seal arranged on the base body which, when an adhesive anchor is inserted in a bore, axially closes at least the gap remaining between the base body and a wall of the bore and thus at least essentially prevents the passage of adhesive. Note is that a certain sealing gap can definitely remain between the seal and the wall of the bore, provided this is small enough to form a sufficiently high resistance to a flow through, so that the adhesive mass introduced into the gap space is deflected away from the seal in the intended direction .

Weil das mit Klebemasse zu füllende Volumen bekannt ist, kennt man auch die benötigte Menge an Klebemasse, weshalb das Verfahren auf reproduzierbare Weise durchführbar ist. Bei einem Bauprojekt kann die insgesamt benötigte Menge an Klebemasse ziemlich genau voraus berechnet werden. Die auftretenden Verluste sind viel geringer als beim Stand der Technik. Ein - nicht reproduzierbares - Drehen des Klebeankers ist nicht erforderlich.Because the volume to be filled with adhesive is known, the required amount of adhesive is also known, which is why the method can be carried out in a reproducible manner. In a construction project, the total amount of adhesive required can be calculated fairly precisely in advance. The losses that occur are much lower than in the prior art. A - non-reproducible - turning of the adhesive anchor is not necessary.

Beispielsweise kann die Dichtung in Form eines radial um den Grundkörper herum laufenden Vorsprungs ausgebildet sein. Die Dichtung könnte z. B. auch als auf einen Kopf des Klebeankers aufschraubbares Teil ausgebildet sein. Die Dichtung kann zumindest so elastisch oder nachgiebig ausgebildet sein, dass eine Anpassung an Bohrungen mit unterschiedlichen Durchmessern möglich ist.For example, the seal can be designed in the form of a projection running radially around the base body. The seal could e.g. B. also be designed as a part that can be screwed onto a head of the adhesive anchor. The seal can be made at least so elastic or resilient that it can be adapted to bores with different diameters.

Es kann vorgesehen sein, dass der Klebeanker einen Presssitz zum axialen Positionieren des Klebeankers in der Bohrung aufweist, wobei vorzugsweise vorgesehen ist, dass die Dichtung als Presssitz fungiert. Durch den Presssitz kann auch ein Zentrieren des Klebeankers in der Bohrung erfolgen.It can be provided that the adhesive anchor has a press fit for the axial positioning of the adhesive anchor in the bore, it being preferably provided that the seal functions as a press fit. The press fit can also center the adhesive anchor in the hole.

Der Presssitz kann entweder nur so stark ausgebildet sein, dass ein Hineinrutschen des Klebeankers in die Bohrung vor dem Verfestigen der Klebemasse verhindert wird, oder er kann so stark ausgebildet sein, dass ein Verschieben des Klebeankers durch die beim Einbringen der Klebemasse entstehenden Injektionskräfte verhindert wird.The press fit can either be so strong that the adhesive anchor is prevented from slipping into the bore before the adhesive mass solidifies, or it can be so strong that the adhesive anchor is prevented from being displaced by the injection forces generated when the adhesive is introduced.

Die Klebemasse kann flüssig oder pastös ausgebildet sein. Z. B. kann es sich um einen Zwei-Komponenten-Klebstoff oder Mörtel handeln.The adhesive can be liquid or pasty. For example, it can be a two-part adhesive or mortar.

Der Klebanker kann z. B. aus Kunststoff oder Metall oder Kombinationen daraus bestehen.The Klebanker can e.g. B. made of plastic or metal or combinations thereof.

Ausführungsbeispiele der Erfindung werden anhand der Figuren diskutiert. Es zeigen:

Fig. 1a-1e
zwei Ausführungsbeispiele der Erfindung mit einem hülsenförmigen Grundkörper in verschiedenen Ansichten
Fig. 2a-2b
ein Ausführungsbeispiel (nicht Teil der Erfindung) mit einem hülsenförmigen Grundkörper
Fig. 3a-3d
ein Ausführungsbeispiel (nicht Teil der Erfindung) mit einem hülsenförmigen Grundkörper
Fig. 4a-4c
ein weiteres Ausführungsbeispiel (nicht Teil der Erfindung) mit einem stangenförmigen Grundkörper in verschiedenen Ansichten
Fig. 5
ein weiteres Ausführungsbeispiel der Erfindung mit einem hülsenförmigen Grundkörper und einer Dichtung in Form einer sackartigen Folie
Fig. 6a-6c
Detaildarstellungen zu möglichen Ausbildungen der Dichtung.
Exemplary embodiments of the invention are discussed with reference to the figures. Show it:
Figures 1a-1e
two embodiments of the invention with a sleeve-shaped base body in different views
Figures 2a-2b
an embodiment (not part of the invention) with a sleeve-shaped base body
Figures 3a-3d
an embodiment (not part of the invention) with a sleeve-shaped base body
Figures 4a-4c
a further embodiment (not part of the invention) with a rod-shaped base body in different views
Fig. 5
Another embodiment of the invention with a sleeve-shaped base body and a seal in the form of a bag-like film
Figures 6a-6c
Detailed representations of possible seal designs.

Fig. 1a zeigt ein Ausführungsbeispiel eines erfindungsgemäßen Klebeankers 1 mit einem im Wesentlichen zylindrisch ausgebildeten, in Richtung der Längsachse axial erstreckten Grundkörper 2 in einem Querschnitt durch eine die Längsachse des Grundkörpers 2 aufweisende, zentrale Ebene. Der Klebeanker 1 ist in eine Bohrung 6 eines (hier als Betonfläche ausgebildeten) Untergrunds eingesetzt. Die Einsetzrichtung stimmt mit der Erstreckungsrichtung der Bohrung 6 überein. Das Einsetzen des Klebeankers 1 in die Bohrung 6 erfolgt nach dem erfindungsgemäßen Verfahren noch vor dem Einbringen von Klebemasse 4 in die Bohrung 6. Fig. 1a shows an exemplary embodiment of an adhesive anchor 1 according to the invention with an essentially cylindrical base body 2 extending axially in the direction of the longitudinal axis in a cross section through a central plane having the longitudinal axis of base body 2. The adhesive anchor 1 is inserted into a bore 6 of a subsurface (designed here as a concrete surface). The direction of insertion corresponds to the direction of extension of the bore 6. According to the method according to the invention, the adhesive anchor 1 is inserted into the bore 6 before the adhesive 4 is introduced into the bore 6.

Der Grundkörper 2 des Klebeankers 1 ist als Hülse ausgebildet und mit einem Innengewinde 13 (dieses stellt das Verbindungsmittel zum Verbinden eines Bauteiles mit dem Klebeanker 1 dar) versehen. Der Grundkörper 2 erstreckt sich zwischen einem Kopf 9 des Klebeankers 1 und einem dem Kopf 9 entgegengesetzten Ende des Klebeankers 1. In diesem Ausführungsbeispiel entspricht der erste Kanal 8 der Kernlochbohrung des Innengewindes 13.The base body 2 of the adhesive anchor 1 is designed as a sleeve and is provided with an internal thread 13 (this represents the connecting means for connecting a component to the adhesive anchor 1). The base body 2 extends between a head 9 of the adhesive anchor 1 and an end of the adhesive anchor 1 opposite the head 9. In this exemplary embodiment, the first channel 8 corresponds to the core hole of the internal thread 13.

Der Klebeanker 1 weist eine hier als radial umlaufender Vorsprung ausgebildete und im Bereich des Kopfes 9 angeordnete Dichtung 7 auf, welche den zwischen dem Grundkörper 2 und der Wandung der Bohrung 6 verbleibenden Spaltraum in Einsetzrichtung axial verschließt und so die Passage von Klebemasse 4 um den Kopf 9 herum zumindest im Wesentlichen verhindert.The adhesive anchor 1 has a seal 7, designed here as a radially circumferential projection and arranged in the area of the head 9, which axially closes the gap remaining between the base body 2 and the wall of the bore 6 in the insertion direction and thus the passage of adhesive 4 around the head 9 around at least substantially prevented.

Im Grundkörper 2 ist eine hier zentral angeordnete Einbringöffnung 3 für Klebemasse angeordnet, in welche die Klebemasse 4 mit Hilfe eines in die Einbringöffnung 3 eingeführten Injektors 10 eingebracht werden kann (vgl. Fig. 1c).In the base body 2 there is a centrally arranged introduction opening 3 for adhesive, into which the adhesive 4 can be introduced with the aid of an injector 10 introduced into the introduction opening 3 (cf. Figure 1c ).

Der Grundkörper 2 weist hier zwei mit der Einbringöffnung 3 über einen Verbindungskanal 11 und quer zur axialen Erstreckung verlaufenden Kanal 17 kommunizierende Austrittsöffnungen 5 auf (vgl. Fig. 1b), welche den Austritt von Klebemasse 4 aus dem Grundkörper 2 in die den Klebeanker 1 umgebende Bohrung 6 gestatten.The base body 2 here has two outlet openings 5 communicating with the introduction opening 3 via a connecting channel 11 and channel 17 running transversely to the axial extent (cf. Figure 1b ), which allow the escape of adhesive 4 from the base body 2 into the bore 6 surrounding the adhesive anchor 1.

Weil sich aufgrund der Dichtung 7 für über die Austrittsöffnungen 5 austretende Klebemasse 4 ein Strömungspfad mit geringem Widerstand nur in eine Richtung ergibt, nämlich in die vom Kopf 9 des Klebeankers 1 wegweisende Richtung (also entgegen der Einsetzrichtung), strömt die ausgetretene Klebemasse 4 vom Kopf 9 weg (vgl. Fig. 1c) und erreicht schließlich die Öffnung der Bohrung 6. Das Einbringen von Klebemasse 4 kann dann gestoppt werden. Es ist eine definierte Menge an Klebemasse 4 in die Bohrung 6 eingebracht worden und man hat die Gewissheit, dass der axial in Einsetzrichtung durch die Dichtung 7 begrenzte, zwischen der Bohrung 6 und dem Grundkörper 2 verbleibende Spaltraum vollständig mit Klebemasse 4 gefüllt ist.Because the seal 7 results in a flow path with low resistance only in one direction for the adhesive 4 exiting via the outlet openings 5, namely in the direction pointing away from the head 9 of the adhesive anchor 1 (i.e. opposite to the direction of insertion), the leaked adhesive 4 flows from the head 9 away (cf. Figure 1c ) and finally reaches the opening of the bore 6. The introduction of adhesive 4 can then be stopped. A defined amount of adhesive 4 is in the bore 6 has been introduced and one has the certainty that the gap remaining between the bore 6 and the base body 2, which is axially delimited in the insertion direction by the seal 7 and is completely filled with adhesive 4.

Fig. 1d zeigt eine isometrische Ansicht des diskutierten Ausführungsbeispiels. Fig. 1d Figure 3 shows an isometric view of the discussed embodiment.

Beim Ausführungsbeispiel der Fig. 1a-1d sind die Austrittsöffnungen 5 mit einem entlang der Mantelfläche des Grundkörpers 2 helikal verlaufenden, in Form einer Nut ausgebildeten zweiten Kanal 12 verbunden.In the embodiment of Figures 1a-1d the outlet openings 5 are connected to a second channel 12 which runs helically along the outer surface of the base body 2 and is in the form of a groove.

Anders als dargestellt, könnte die Dichtung 7 z. B. auch als auf den Kopf 9 des Klebeankers 1 aufschraubbares Teil ausgebildet sein (vgl. Fig. 1e und 6c).Other than shown, the seal 7 could, for. B. can also be designed as a part that can be screwed onto the head 9 of the adhesive anchor 1 (cf. Fig. 1e and 6c ).

Im Ausführungsbeispiel der Fig. 1e sind zwei zweite Kanäle 12 an einander entgegengesetzten Seiten des Grundkörpers 2 vorgesehen, die jeweils mit einer der zwei Austrittsöffnungen 5 verbunden sind und mäandernd entlang der Mantelfläche des Grundkörpers 2 axial verlaufen. Anders als dargestellt, könnte die Dichtung 7 hier so wie in den Fig. 1a-1d gezeigt ausgebildet sein.In the embodiment of Fig. 1e two second channels 12 are provided on opposite sides of the base body 2, each of which is connected to one of the two outlet openings 5 and meanders axially along the lateral surface of the base body 2. In contrast to what is shown, the seal 7 could here as in FIGS Figures 1a-1d be formed shown.

Fig. 2a zeigt ein Ausführungsbeispiel eines nicht-erfindungsgemäßen Klebeankers 1 in einem Querschnitt durch eine die Längsachse des im Wesentlichen zylindrisch ausgebildeten Grundkörpers 2 aufweisende, zentrale Ebene. Fig. 2a shows an exemplary embodiment of an adhesive anchor 1 not according to the invention in a cross section through a central plane having the longitudinal axis of the essentially cylindrical base body 2.

Der Klebeanker 1 weist in diesem Ausführungsbeispiel einen als mit einem Innengewinde 13 (dieses stellt das Verbindungsmittel zum Verbinden eines Bauteiles mit dem Klebeanker 1 dar) versehenen und als Hülse ausgebildeten Grundkörper 2 auf, welcher sich zwischen einem Kopf 9 des Klebeankers 1 und einem dem Kopf 9 entgegengesetzten Ende des Klebeankers 1 erstreckt.In this exemplary embodiment, the adhesive anchor 1 has a base body 2 which is provided with an internal thread 13 (this represents the connecting means for connecting a component to the adhesive anchor 1) and is designed as a sleeve, which is located between a head 9 of the adhesive anchor 1 and a head 9 opposite end of the adhesive anchor 1 extends.

Im Unterschied zum Ausführungsbeispiel der Fig. 1 ist hier keine Einbringöffnung 3 vorgesehen, sondern Klebemasse 4 kann mittels eines Injektors 10 seitlich am Klebeanker 1 im Bereich der Öffnung der Bohrung 6 in einen ersten Kanal 8 eingebracht werden und fließt entlang des ersten Kanals 8 in Einsetzrichtung bis zum Kopf 9 des Klebeankers 1. Dort mündet der erste Kanal 8 über ein quer zur axialen Richtung des Grundkörpers 2 verlaufendes Kanalsegment 14 in einen zweiten Kanal 12 ein, über welchen die Klebemasse 4 vom Kopf 9 des Klebeankers 1 entgegen der Einsetzrichtung zurück zur Öffnung der Bohrung 6 strömen kann. Der erste Kanal 8 ist hier in Form einer zwischen zwei axial verlaufenden Vorsprüngen gerade verlaufenden Nut ausgebildet. Der zweite Kanal 12 ist an der gegenüberliegenden Seite des Grundkörpers 2 angeordnet und mäandernd ausgebildet.In contrast to the embodiment of Fig. 1 no introduction opening 3 is provided here, but adhesive 4 can be introduced into a first channel 8 by means of an injector 10 on the side of the adhesive anchor 1 in the area of the opening of the bore 6 and flows along the first channel 8 in the direction of insertion to the head 9 of the adhesive anchor 1. There the first channel 8 opens into a second channel 12 via a channel segment 14 running transversely to the axial direction of the base body 2, through which the adhesive 4 can flow from the head 9 of the adhesive anchor 1 counter to the direction of insertion back to the opening of the bore 6. The first channel 8 is designed here in the form of a groove that runs straight between two axially extending projections. The second channel 12 is arranged on the opposite side of the base body 2 and is designed to meander.

Natürlich wäre auch eine Ausbildung des ersten und zweiten Kanals 8, 12 in Form einer zwei- oder mehrgängigen Helix möglich, wobei sich der erste und zweite Kanal 8, 12 nicht schneiden (vgl. Fig. 3a-3d). Die Fig. 3b und 3d zeigen isometrische Ansichten der einander gegenüberliegenden Seiten des Grundkörpers 2. Dann kann bevorzugt vorgesehen sein, dass sich die Steigung des Kanals 8, 12 bzw. der Kanäle 8, 12 in axialer Richtung des Grundkörpers 2 verändert. Eine solche veränderliche Steigung hat den Vorteil, dass ein Herausdrehen des Klebankers 1 nach dem Verfestigen der Klebemasse 4 nicht möglich ist.It would of course also be possible to design the first and second channels 8, 12 in the form of a two-thread or multiple-thread helix, with the first and second channels 8, 12 not intersecting (cf. Figures 3a-3d ). The Figures 3b and 3d show isometric views of the opposite sides of the base body 2. It can then preferably be provided that the slope of the channel 8, 12 or the channels 8, 12 changes in the axial direction of the base body 2. Such a variable slope has the advantage that it is not possible to unscrew the adhesive core 1 after the adhesive 4 has solidified.

Das Ausführungsbeispiel der Fig. 4 weist einen stangenförmigen Grundkörper 2 auf, wobei das Verbindungsmittel als Außengewinde 15 ausgebildet ist. Die Ansicht der Fig. 4a zeigt den erfindungsgemäßen Klebeanker 1 in einem Querschnitt durch eine die Längsachse des im Wesentlichen zylindrisch ausgebildeten Grundkörpers 2 aufweisende, zentrale Ebene (vgl. Linie A - A in Fig. 4c).The embodiment of Fig. 4 has a rod-shaped base body 2, the connecting means being designed as an external thread 15. The view of the Figure 4a shows the adhesive anchor 1 according to the invention in a cross section through a central plane having the longitudinal axis of the essentially cylindrical base body 2 (cf. line A - A in FIG Figure 4c ).

Klebemasse 4 ist über einen im Grundkörper 2 verlaufenden und zentral angeordneten ersten Kanal 8 in den Bereich des Kopfes 9 des Klebeankers 1 bringbar. Dort mündet der erste Kanal 8 in eine Austrittsöffnung 5 ein. Über einen vor dem Kopf 9 angeordneten Hohlraum kann ausgetretene Klebemasse 4 in den helikal am Grundkörper 2 verlaufenden zweiten Kanal 12 eintreten und bis in den Bereich der Öffnung der Bohrung 6 fließen. Eine Dichtung 7 ist hier nicht vorgesehen. Natürlich wäre aber auch bei diesem Ausführungsbeispiel das Vorsehen einer Dichtung 7 möglich.Adhesive 4 is in the area of the head 9 of the adhesive anchor 1 via a centrally arranged first channel 8 running in the base body 2 bringable. There the first channel 8 opens into an outlet opening 5. Via a cavity arranged in front of the head 9, leaked adhesive 4 can enter the second channel 12 running helically on the base body 2 and flow into the area of the opening of the bore 6. A seal 7 is not provided here. Of course, the provision of a seal 7 would also be possible in this exemplary embodiment.

Fig. 5 zeigt ein weiteres Ausführungsbeispiel der Erfindung mit einem hülsenförmigen Grundkörper 2 und einer Dichtung 7 in Form einer sackartigen Folie. Bei Ziegeluntergründen kann so verhindert werden, dass die Klebemasse 4 durch Hohlräume einfach wegläuft. Die Permeabilität der Folie ist bevorzugt auf die Art der Klebemasse 4 abgestimmt, dass nur soviel Klebemasse durch die Folie nach außen dringt, wie zur Verklebung mit der Bohrlochwand notwendig ist. Die Folie verhindert, dass sich die Klebemasse 4 in Hohlräumen beispielsweise bei Hohlziegeln unkontrolliert verläuft. Fig. 5 shows a further embodiment of the invention with a sleeve-shaped base body 2 and a seal 7 in the form of a bag-like film. In the case of brick substrates, this can prevent the adhesive 4 from simply running away through cavities. The permeability of the film is preferably matched to the type of adhesive 4 that only as much adhesive penetrates through the film to the outside as is necessary for bonding to the borehole wall. The film prevents the adhesive 4 from running in an uncontrolled manner in cavities, for example in the case of hollow bricks.

Die Folie kann im geometrischen Verlauf über unterschiedliche Permeabilitäten verfügen. So ist es vorteilhaft im unmittelbaren Bereich des Kopfes 9 axial undurchlässig zu gestalten.The geometric course of the film can have different permeabilities. So it is advantageous to design axially impermeable in the immediate area of the head 9.

Alternativ zu Folien sind Draht-, Kunststoffgitter oder Gewebe aus geeigneten Materialen einsetzbarAs an alternative to foils, wire mesh, plastic mesh or fabric made of suitable materials can be used

Hier ist die Folie am Kopf 9 des Klebeankers 1 befestigt, z. B. verklebt. Die Folie könnte auch nur einen Teil der Bohrung 6 ausfüllen.Here the film is attached to the head 9 of the adhesive anchor 1, e.g. B. glued. The film could also fill only part of the bore 6.

Die Fig. 6a-6c zeigen Detaildarstellungen zu möglichen Ausbildungen der Dichtung 7. In den Fig. 6a und 6b ist die Dichtung 7 in eine am Kopf 9 des Klebeankers 1 umlaufende Nut eingesetzt und weist die Form einer Scheibe (Fig. 6a) oder eines Ringes (Fig. 6b) auf. In Fig. 6c ist die Dichtung 7 mit dem Kopf 9 des Klebeankers 1 verschraubt.The Figures 6a-6c show detailed representations of possible designs of the seal 7. In the Figures 6a and 6b the seal 7 is inserted into a groove running around the head 9 of the adhesive anchor 1 and has the shape of a disk ( Figure 6a ) or a ring ( Figure 6b ) on. In Figure 6c the seal 7 is screwed to the head 9 of the adhesive anchor 1.

Eine beliebige Kombination von Merkmalen der oben diskutierten Ausführungsbeispiele ist möglich.Any combination of features of the exemplary embodiments discussed above is possible.

Bei allen Ausführungsbeispielen kann eine an sich bekannte Setztiefenmarkierung oder ein Setztiefenanschlag vorgesehen sein.In all of the exemplary embodiments, a setting depth marking known per se or a setting depth stop can be provided.

Bezugszeichenliste:List of reference symbols:

11
KlebeankerAdhesive anchor
22
GrundkörperBase body
33
EinbringöffnungFeed opening
44th
KlebemasseAdhesive
55
AustrittsöffnungOutlet opening
66th
Bohrungdrilling
77th
Dichtungpoetry
88th
erster Kanalfirst channel
99
Kopf des KlebeankersHead of the adhesive anchor
1010
Injektor für KlebemasseInjector for adhesive mass
1111
VerbindungskanalConnection channel
1212
zweiter Kanalsecond channel
1313
Innengewindeinner thread
1414th
KanalsegmentChannel segment
1515th
AußengewindeExternal thread
1616
NutGroove
1717th
Kanal zwischen Austrittsöffnung und EinbringöffnungChannel between the outlet opening and the inlet opening

Claims (9)

  1. An adhesive anchor (1) for insertion into a bore (6) comprising an at least substantially cylindrical main body (2) and a connecting means for connecting a component to the adhesive anchor (1), wherein the cylindrical main body (2) extends between a head (9) of the adhesive anchor (1) and an end opposite to the head (9), wherein arranged on or in the main body (2) is at least one first passage (8) for adhesive (4), which extends from the end opposite to the head (9) of the adhesive anchor (1) to a predetermined axial position of the main body (2) and by way of which adhesive (4) can be introduced into the bore (6) from the end opposite to the head (9) of the adhesive anchor (1) to the predetermined axial position, and wherein arranged on or in the main body (2) is at least one second passage (12) for adhesive (4), which extends from the predetermined axial position of the main body (2) to an end opposite to the head (9) of the adhesive anchor (1) and by way of which adhesive (4) can be discharged starting from the predetermined axial position to the end opposite to the head (9) of the adhesive anchor (1), wherein it is preferably provided that the at least one second passage (12) joins the at least one first passage (8), characterised in that the main body (2) is in the form of a sleeve and the connecting means is in the form of a female thread (13) in the sleeve, wherein the at least one first passage (8) corresponds to a core hole bore of the female thread (13) and that arranged on the main body (2) is at least one introduction opening (3), by way of which an adhesive (4) can be introduced by means of an injector (10) inserted into the introduction opening (3) and that the main body (2) has at least one outlet opening (5) which communicates with the at least one introduction opening (3) and which allows the outlet of adhesive (4) introduced into or by way of the introduction opening (3) from the main body into a bore (6) surrounding the adhesive anchor (1) and that the introduction opening (3) extends to the head (9) of the adhesive anchor (1) and is delimited axially by an end face provided with a through opening (11) communicating with the outlet opening (5), wherein an injector (10) for adhesive can be introduced into the introduction opening (3) as far as the through opening (11).
  2. An adhesive anchor according to claim 1 characterised in that the at least one second passage (12) is or are at least portion-wise in the form of a groove extending at an outside surface of the main body (2).
  3. An adhesive anchor according to one of claims 1 or 2 characterised in that the at least one second passage (12) extends at least portion-wise helically in an axial direction along the main body (2), wherein it is preferably provided that the slope of the passage (8, 12) varies in the axial direction of the main body (2).
  4. An adhesive anchor according to one of claims 1 to 3 characterised in that the at least one second passage (12) extends at least portion-wise in a meandering configuration in the axial direction along the main body (2).
  5. An adhesive anchor according to one of claims 1 to 4 characterised in that the outlet opening (5) communicates with the at least one introduction opening (3) by way of at least one passage (17) which extends transversely relative to the axial extent of the main body (2) and which is preferably arranged in the region of a head (9) of the adhesive anchor (1).
  6. An adhesive anchor according to claim 5 characterised in that the through opening (11) communicates with the outlet opening (5) by way of the passage (17) which extends transversely relative to the axial extent of the main body (2).
  7. An adhesive anchor according to one of claims 1 to 6 characterised in that the adhesive anchor (1) has at least one seal (7) which is arranged on the main body (2) and which when an adhesive anchor (1) is inserted into a bore (6) closes the gap space remaining between the main body (2) and a wall of the bore (6) axially in an insertion direction of the adhesive anchor (1) to at least substantially prevent adhesive (4) from passing.
  8. An adhesive anchor according to one of claims 1 to 7 characterised in that the adhesive anchor (1) has a press fit for axial positioning of the adhesive anchor (1) in the bore (6), wherein it is preferably provided that the seal (7) functions as the press fit.
  9. A method of anchoring a component in a bore (6) using an adhesive anchor (1) according to one of claims 1 to 8 comprising the steps:
    - inserting an adhesive anchor (1) according to at least one of the preceding claims into the bore (6) in an insertion direction, and
    - introducing adhesive (4), preferably two-component adhesive or mortar, into the gap space remaining between the bore (6) and the main body (2).
EP17192913.6A 2016-09-29 2017-09-25 Adhesive anchor Active EP3301313B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50879/2016A AT519073B1 (en) 2016-09-29 2016-09-29 adhesive anchor

Publications (2)

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EP3301313A1 EP3301313A1 (en) 2018-04-04
EP3301313B1 true EP3301313B1 (en) 2020-08-26

Family

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Application Number Title Priority Date Filing Date
EP17192913.6A Active EP3301313B1 (en) 2016-09-29 2017-09-25 Adhesive anchor

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EP (1) EP3301313B1 (en)
AT (1) AT519073B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29820560U1 (en) * 1998-11-18 2000-04-06 Fischer Artur Werke Gmbh Adhesive anchor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556493A1 (en) * 1975-12-16 1977-06-30 Alfons Harke Adhesively fixed wall anchor bolt - uses helical web to influence adhesive flow behind outer sealing ring
US4601614A (en) * 1984-02-22 1986-07-22 Lane William L Rockbolt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29820560U1 (en) * 1998-11-18 2000-04-06 Fischer Artur Werke Gmbh Adhesive anchor

Also Published As

Publication number Publication date
AT519073A1 (en) 2018-03-15
AT519073B1 (en) 2018-06-15
EP3301313A1 (en) 2018-04-04

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